Harry Fittings, a reputable Houston-based US manufacturer and supplier, is well known for providing high–performance industrial fittings designed for maximum performance in the toughest conditions. With an emphasis on precision engineering, reliability, and customer satisfaction, we supply a broad selection of heavy-duty products specifically designed to suit various industries. Amongst our high-end products, Alloy Steel WP91 Buttweld Fittings are notable for their outstanding high-temperature tensile strength, oxidation resistance, and capacity to resist extreme pressure. Such fittings find extensive applications in power generation, petrochemical, and oil & gas applications for engineering-critical piping systems.
| Specifications | : | ASTM A234 / ASME SA234 |
| Size | : | 1/8” NB TO 48” NB. (Seamless & 100% X-Ray Welded, Fabricated) |
| Standards | : | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43 |
| Thickness | : | Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS |
| Type | : | Seamless / Welded / Fabricated |
Alloy Steel WP91 Buttweld Fittings are produced using a 9% chromium and 1% molybdenum content alloy, and carbon, manganese, silicon, phosphorus, and sulfur are incorporated in addition to give improved performance. This alloy offers superior thermal fatigue resistance, oxidation resistance, and mechanical strength at high temperatures. These fittings offer a minimum tensile strength of 585 MPa, yield strength of 415 MPa, and elongation of 30%. Recognized for their long-term creep strength and structural stability, WP91 fittings are best suited for applications pertaining to extreme pressure and heat, ensuring optimum reliability in high-performance conditions.
| Grade | C | Mn | Si | S | P | Cr | Mo |
| A234 WP91 | 0.08-0.12 | 0.3-0.6 | 0.2-0.5 | ≤0.02 | ≤0.015 | 8-9.5 | 0.85-1.05 |
| Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % |
| A234 WP91 | ≥590 | ≥415 | ≥20 |
Harry Fittings one of the largest suppliers of Alloy Steel WP91 Buttweld Fittings in Houston, USA. We specialize in providing a wide range of high-quality, durable fittings for various industrial applications. Our inventory includes elbows, tees, reducers, couplings, and other essential fittings designed to offer exceptional corrosion resistance and strength. Alloy Steel WP91 is known for its cost-effectiveness and excellent mechanical properties, making it ideal for industries such as construction, chemical processing, and food processing. With a commitment to customer satisfaction, timely delivery, and competitive pricing, we are the trusted choice for Alloy Steel WP91 Buttweld Fittings in the USA.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Alloy Steel WP91 Buttweld Fittings from Harry Fittings offer exceptional corrosion resistance, especially in seawater and harsh environments. They are known for their high strength, durability, and resistance to pitting and crevice corrosion, ensuring long-lasting performance. We provide precise manufacturing, quality control, and reliable service for diverse industrial applications.
Alloy Steel WP91 Buttweld Fittings offer numerous advantages, especially in high-temperature and high-pressure applications. Their composition, featuring chromium and molybdenum, provides outstanding resistance to oxidation, corrosion, and thermal fatigue. WP91 fittings are known for their excellent weldability, strength, and durability, ensuring long-term performance in demanding industries like power generation, petrochemical, and oil & gas. They maintain structural integrity even under extreme conditions, reducing the risk of failure. Additionally, WP91 Fittings require minimal maintenance and offer cost-effective solutions due to their longevity, making them a reliable choice for critical systems in challenging environments.
Yes, custom sizes are available for Alloy Steel WP91 Buttweld Fittings to meet specific requirements. We offer tailored solutions to ensure precise fit and performance for various applications. For more information, please contact us at sales@harryfittings.us.
Alloy Steel WP91 Buttweld Fittings are widely employed in applications requiring strength, toughness, and heat resistance. In power generation plants, they play a crucial role in boilers, steam lines, and pressure vessels working at high temperatures and pressures. In petrochemical applications, the fittings work with corrosive and high-pressure fluids to enable smooth process flow. Oil & gas industry also depends on WP91 for refineries, pipelines, and offshore platforms, where durability under severe conditions is vital. Their high creep resistance, thermal stability, and structural integrity make them irreplaceable for critical operations with long service life and low maintenance.
Get in touch with one of our Technical Sales Representatives to request a quote or get answers to any questions you may have.
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